/**
 * AddOnManager.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles the loading of themes/plugins or other add-ons and their language packs.
 *
 * @class tinymce.AddOnManager
 */
define(
  'tinymce.core.AddOnManager',
  [
    "tinymce.core.dom.ScriptLoader",
    "tinymce.core.util.Tools"
  ],
  function (ScriptLoader, Tools) {
    var each = Tools.each;

    function AddOnManager() {
      var self = this;

      self.items = [];
      self.urls = {};
      self.lookup = {};
    }

    AddOnManager.prototype = {
      /**
       * Returns the specified add on by the short name.
       *
       * @method get
       * @param {String} name Add-on to look for.
       * @return {tinymce.Theme/tinymce.Plugin} Theme or plugin add-on instance or undefined.
       */
      get: function (name) {
        if (this.lookup[name]) {
          return this.lookup[name].instance;
        }

        return undefined;
      },

      dependencies: function (name) {
        var result;

        if (this.lookup[name]) {
          result = this.lookup[name].dependencies;
        }

        return result || [];
      },

      /**
       * Loads a language pack for the specified add-on.
       *
       * @method requireLangPack
       * @param {String} name Short name of the add-on.
       * @param {String} languages Optional comma or space separated list of languages to check if it matches the name.
       */
      requireLangPack: function (name, languages) {
        var language = AddOnManager.language;

        if (language && AddOnManager.languageLoad !== false) {
          if (languages) {
            languages = ',' + languages + ',';

            // Load short form sv.js or long form sv_SE.js
            if (languages.indexOf(',' + language.substr(0, 2) + ',') != -1) {
              language = language.substr(0, 2);
            } else if (languages.indexOf(',' + language + ',') == -1) {
              return;
            }
          }

          ScriptLoader.ScriptLoader.add(this.urls[name] + '/langs/' + language + '.js');
        }
      },

      /**
       * Adds a instance of the add-on by it's short name.
       *
       * @method add
       * @param {String} id Short name/id for the add-on.
       * @param {tinymce.Theme/tinymce.Plugin} addOn Theme or plugin to add.
       * @return {tinymce.Theme/tinymce.Plugin} The same theme or plugin instance that got passed in.
       * @example
       * // Create a simple plugin
       * tinymce.create('tinymce.plugins.TestPlugin', {
       *   TestPlugin: function(ed, url) {
       *   ed.on('click', function(e) {
       *      ed.windowManager.alert('Hello World!');
       *   });
       *   }
       * });
       *
       * // Register plugin using the add method
       * tinymce.PluginManager.add('test', tinymce.plugins.TestPlugin);
       *
       * // Initialize TinyMCE
       * tinymce.init({
       *  ...
       *  plugins: '-test' // Init the plugin but don't try to load it
       * });
       */
      add: function (id, addOn, dependencies) {
        this.items.push(addOn);
        this.lookup[id] = { instance: addOn, dependencies: dependencies };

        return addOn;
      },

      remove: function (name) {
        delete this.urls[name];
        delete this.lookup[name];
      },

      createUrl: function (baseUrl, dep) {
        if (typeof dep === "object") {
          return dep;
        }

        return { prefix: baseUrl.prefix, resource: dep, suffix: baseUrl.suffix };
      },

      /**
       * Add a set of components that will make up the add-on. Using the url of the add-on name as the base url.
       * This should be used in development mode.  A new compressor/javascript munger process will ensure that the
       * components are put together into the plugin.js file and compressed correctly.
       *
       * @method addComponents
       * @param {String} pluginName name of the plugin to load scripts from (will be used to get the base url for the plugins).
       * @param {Array} scripts Array containing the names of the scripts to load.
       */
      addComponents: function (pluginName, scripts) {
        var pluginUrl = this.urls[pluginName];

        each(scripts, function (script) {
          ScriptLoader.ScriptLoader.add(pluginUrl + "/" + script);
        });
      },

      /**
       * Loads an add-on from a specific url.
       *
       * @method load
       * @param {String} name Short name of the add-on that gets loaded.
       * @param {String} addOnUrl URL to the add-on that will get loaded.
       * @param {function} success Optional success callback to execute when an add-on is loaded.
       * @param {Object} scope Optional scope to execute the callback in.
       * @param {function} failure Optional failure callback to execute when an add-on failed to load.
       * @example
       * // Loads a plugin from an external URL
       * tinymce.PluginManager.load('myplugin', '/some/dir/someplugin/plugin.js');
       *
       * // Initialize TinyMCE
       * tinymce.init({
       *  ...
       *  plugins: '-myplugin' // Don't try to load it again
       * });
       */
      load: function (name, addOnUrl, success, scope, failure) {
        var self = this, url = addOnUrl;

        function loadDependencies() {
          var dependencies = self.dependencies(name);

          each(dependencies, function (dep) {
            var newUrl = self.createUrl(addOnUrl, dep);

            self.load(newUrl.resource, newUrl, undefined, undefined);
          });

          if (success) {
            if (scope) {
              success.call(scope);
            } else {
              success.call(ScriptLoader);
            }
          }
        }

        if (self.urls[name]) {
          return;
        }

        if (typeof addOnUrl === "object") {
          url = addOnUrl.prefix + addOnUrl.resource + addOnUrl.suffix;
        }

        if (url.indexOf('/') !== 0 && url.indexOf('://') == -1) {
          url = AddOnManager.baseURL + '/' + url;
        }

        self.urls[name] = url.substring(0, url.lastIndexOf('/'));

        if (self.lookup[name]) {
          loadDependencies();
        } else {
          ScriptLoader.ScriptLoader.add(url, loadDependencies, scope, failure);
        }
      }
    };

    AddOnManager.PluginManager = new AddOnManager();
    AddOnManager.ThemeManager = new AddOnManager();

    return AddOnManager;
  }
);

/**
 * TinyMCE theme class.
 *
 * @class tinymce.Theme
 */

/**
 * This method is responsible for rendering/generating the overall user interface with toolbars, buttons, iframe containers etc.
 *
 * @method renderUI
 * @param {Object} obj Object parameter containing the targetNode DOM node that will be replaced visually with an editor instance.
 * @return {Object} an object with items like iframeContainer, editorContainer, sizeContainer, deltaWidth, deltaHeight.
 */

/**
 * Plugin base class, this is a pseudo class that describes how a plugin is to be created for TinyMCE. The methods below are all optional.
 *
 * @class tinymce.Plugin
 * @example
 * tinymce.PluginManager.add('example', function(editor, url) {
 *     // Add a button that opens a window
 *     editor.addButton('example', {
 *         text: 'My button',
 *         icon: false,
 *         onclick: function() {
 *             // Open window
 *             editor.windowManager.open({
 *                 title: 'Example plugin',
 *                 body: [
 *                     {type: 'textbox', name: 'title', label: 'Title'}
 *                 ],
 *                 onsubmit: function(e) {
 *                     // Insert content when the window form is submitted
 *                     editor.insertContent('Title: ' + e.data.title);
 *                 }
 *             });
 *         }
 *     });
 *
 *     // Adds a menu item to the tools menu
 *     editor.addMenuItem('example', {
 *         text: 'Example plugin',
 *         context: 'tools',
 *         onclick: function() {
 *             // Open window with a specific url
 *             editor.windowManager.open({
 *                 title: 'TinyMCE site',
 *                 url: 'http://www.tinymce.com',
 *                 width: 800,
 *                 height: 600,
 *                 buttons: [{
 *                     text: 'Close',
 *                     onclick: 'close'
 *                 }]
 *             });
 *         }
 *     });
 * });
 */
